From 771dbc31b21f1312fa6a95d8ffb7eb983d3cf1a2 Mon Sep 17 00:00:00 2001
From: Michal Simon <michal.simon@cern.ch>
Date: Thu, 20 Jul 2017 09:53:28 +0200
Subject: [PATCH] [XrdSecgsi] Make sure client does not segv if gsi credentail
 is not present.

---
 src/XrdSecgsi/XrdSecProtocolgsi.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/XrdSecgsi/XrdSecProtocolgsi.cc b/src/XrdSecgsi/XrdSecProtocolgsi.cc
index b88620c5ecf..a4ac93ffcb4 100644
--- a/src/XrdSecgsi/XrdSecProtocolgsi.cc
+++ b/src/XrdSecgsi/XrdSecProtocolgsi.cc
@@ -4595,7 +4595,7 @@ static bool QueryProxyCheck(XrdSutCacheEntry *e, void *a) {
 
    time_t ts_ref = (time_t)(*((XrdSutCacheArg_t *)a)).arg1;
 
-   if (e) {
+   if (e && e->buf1.buf) {
       X509Chain *chain = (X509Chain *)(e->buf1.buf);
       if (chain->CheckValidity(1, ts_ref) == 0) return true;
    }